United States v. Navajo Nation

The Indian Mineral Leasing Act of 1938 (IMLA) allows Indian tribes, with the approval of the Secretary of the Interior, to lease the mining rights on their tribal lands to private companies. In 1964, Navajo Nation (tribe) entered into a lease with the predecessor of Peabody Coal Company, allowing Peabody to mine on the tribe's land in return for a royalty of 37.5 cents for every ton of coal mined. The agreement was subject to renegotiation after 20 years. By 1984, the tribe's royalty was only worth 2% of Peabody's gross proceeds. In 1977 Congress had required a minimum of 12.5%. The tribe requested that the Secretary set a new rate, and the Director of Bureau of Indian Affairs for the Navajo Area, as the Secretary's representative, made a preliminary decision to set the rate at 20%. Peabody's representatives urged the Secretary to reverse or delay the decision. The Secretary agreed, and urged the parties to resume negotiations. The tribe and Peabody agreed on a rate of 12.5%. In 1993, however, the tribe sued the government in the Court of Federal Claims, alleging a breach of trust and claiming $600 million in damages. The court ruled for the government, explaining that though the government may have betrayed the tribe's trust by acting in Peabody’s interest rather than the tribe’s, it had not violated any specific statutory or regulatory obligation. The tribe was therefore not entitled to monetary relief. On appeal, the tribe argued that the entirety of the IMLA imposes on the government a broad obligation to look after the wellbeing of the tribe. The Court of Appeals for the Federal Circuit agreed and reversed the lower court, finding that "the Secretary must act in the best interests of the Indian tribes."